Approximately 22% of the stars you see at night have earth-like planets orbiting around them.

Please excuse me if
this has already been posted. Earth-like, or rather, earth-sized planets are a lot more common
than we once thought. So much so, that they may indeed fill up almost 1/4th of the night sky. 25 billion of them in the Milky Way alone. I personally
think this news is beyond exciting!

There has never been a doubt in my mind there are other earth like planets and intelligent life living on some of them. What will blow me away is when
they discover one (exact location), and can check it out like we're doing with mars. I probably won't live to see that but maybe my kids will.

Interesting article but you shouldn't make up your own title which is different from what the article says. It's referring to stars like our sun, and
you're referring to stars we can see at night. We see other stars at night which are not like our sun, so one doesn't necessarily infer the other.
About 7.6% of stars in the Milky Way are the same yellow type as our sun according to this:

Moreover, the yellow-white, white, and blue-white stars are seen in greater frequency than their proportion would suggest, because they are typically
brighter, so even the 7.6% figure is misleading if you're talking about what "stars you can see at night".

So, one calculation inferred from the article would be that 22% of sun like stars have Earth like planets orbiting them, and since 7.6% of stars in
the Milky Way are the same type as our sun, this is only 1.67% of stars in the Milky Way. Of course they don't say what the percentage of Earth like
planets are orbiting stars not like our sun, and besides it's sort of a shoot from the hip estimate anyway so there's no point in trying to be overly
precise, but there is a difference between 22% versus 1.67% which matters even in a shoot from the hip estimate.

Anyway I liked the quote from Jill Tartar:

Jill Tarter, a pioneer in “SETI,” the search for extraterrestrial intelligence, said in an e-mail: “We haven’t yet found Earth 2.0, but
these statistics suggest that it should be forthcoming, and soon. When we can point to Earth 2.0 in the sky, it will seem completely natural to ask
‘Does anybody live there?’ and ‘Can we go there?’ I think Earth 2.0 will concretize SETI as nothing else has.”

Edit: I see bedlam beat me to it and posted the same thing while I was still writing my reply. Way to go bedlam.

Interesting article but you shouldn't make up your own title which is different from what the article says. It's referring to stars like our sun,
and you're referring to stars we can see at night. We see other stars at night which are not like our sun, so one doesn't necessarily infer the
other. About 7.6% of stars in the Milky Way are the same yellow type as our sun according to this:

Moreover, the yellow-white, white, and blue-white stars are seen in greater frequency than their proportion would suggest, because they are typically
brighter, so even the 7.6% figure is misleading if you're talking about what "stars you can see at night".
'
So, one calculation inferred from the article would be that 22% of sun like stars have Earth like planets orbiting them, and since 7.6% of stars in
the Milky Way are the same type as our sun, this is only 1.67% of stars in the Milky Way.

You are correct on the "at night" thing but you are wrong about the percentage of stars like our Sun.

8% of the stars in the Milky Way are G-class, another 3.5 are K-Class (very close to our Sun but longer lived). Those are the classes of stars that
the statistic of 22% comes from.

So total, 11% or so of the stars in our Galaxy are widely considered "Sunlike".

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